package com.wl.myclocksource.utils;

import gnu.io.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.TooManyListenersException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class SerialPortUtil {

    private static final Logger logger = LoggerFactory.getLogger(SerialPortUtil.class);

    private static SerialPortUtil serialPortUtil = null;

    static {
        //在该类被ClassLoader加载时就初始化一个SerialTool对象
        if (serialPortUtil == null) {
            serialPortUtil = new SerialPortUtil();
        }
    }

    //私有化SerialTool类的构造方法，不允许其他类生成SerialTool对象
    private SerialPortUtil() {
    }

    /**
     * 获取提供服务的SerialTool对象
     *
     * @return serialPortUtil
     */
    public static SerialPortUtil getSerialPortUtil() {
        if (serialPortUtil == null) {
            serialPortUtil = new SerialPortUtil();
        }
        return serialPortUtil;
    }


    /**
     * 查找所有可用端口
     *
     * @return 可用端口名称列表
     */
    public   ArrayList<String> findPort() {
        //获得当前所有可用串口
        Enumeration<CommPortIdentifier> portList = CommPortIdentifier.getPortIdentifiers();

        ArrayList<String> portNameList = new ArrayList<>();

        //将可用串口名添加到List并返回该List
        while (portList.hasMoreElements()) {
            String portName = portList.nextElement().getName();
            portNameList.add(portName);
        }

        return portNameList;
    }

    /**
     * 打开串口
     *
     * @param portName 端口名称
     * @param baudrate 波特率
     * @param databits 数据位
     * @param parity   校验位（奇偶位）
     * @param stopbits 停止位
     * @return 串口对象
//     * @throws SerialPortParameterFailure 设置串口参数失败
//     * @throws NotASerialPort             端口指向设备不是串口类型
//     * @throws NoSuchPort                 没有该端口对应的串口设备
//     * @throws PortInUse                  端口已被占用
     */
    public  SerialPort openPort(String portName, int baudrate, int databits, int parity, int stopbits)  {

        try {
            //通过端口名识别端口
            CommPortIdentifier portIdentifier = CommPortIdentifier.getPortIdentifier(portName);

            //打开端口，并给端口名字和一个timeout（打开操作的超时时间）
            CommPort commPort = portIdentifier.open(portName, 2000);

            //判断是不是串口
            if (commPort instanceof SerialPort) {

                SerialPort serialPort = (SerialPort) commPort;
                try {
                    //设置一下串口的波特率等参数
                    serialPort.setSerialPortParams(baudrate, databits, stopbits, parity);
                } catch (UnsupportedCommOperationException e) {
//                    throw new SerialPortParameterFailure();
                }

                //System.out.println("Open " + portName + " sucessfully !");
                return serialPort;
            } else {
                //不是串口
//                throw new NotASerialPort();
                logger.error("不是串口");
            }
        } catch (NoSuchPortException e1) {
            logger.error("没有找到端口");
            e1.printStackTrace();
//            throw new NoSuchPort();
        } catch (PortInUseException e2) {
            logger.error("端口被占用");
            e2.printStackTrace();
//            throw new PortInUse();
        }
        return null;
    }

    /**
     * 关闭串口
     *
     * @param serialPort 待关闭的串口对象
     */
    public  void closePort(SerialPort serialPort) {
        if (serialPort != null) {
            serialPort.close();
            serialPort = null;
        }
    }

    /**
     * 往串口发送数据
     *
     * @param serialPort 串口对象
     * @param order      待发送数据
//     * @throws SendDataToSerialPortFailure        向串口发送数据失败
//     * @throws SerialPortOutputStreamCloseFailure 关闭串口对象的输出流出错
     */
    public  void sendToPort(SerialPort serialPort, byte[] order)  {
        OutputStream out = null;
        try {
            out = serialPort.getOutputStream();
            out.write(order);
            out.flush();
        } catch (IOException e) {
//            throw new SendDataToSerialPortFailure();
            e.printStackTrace();
        } finally {
            try {
                if (out != null) {
                    out.close();
                    out = null;
                }
            } catch (IOException e) {
//                throw new SerialPortOutputStreamCloseFailure();
                e.printStackTrace();
            }
        }
    }

    /**
     * 从串口读取数据
     *
     * @param serialPort 当前已建立连接的SerialPort对象
     * @return 读取到的数据
//     * @throws ReadDataFromSerialPortFailure     从串口读取数据时出错
//     * @throws SerialPortInputStreamCloseFailure 关闭串口对象输入流出错
     */
    public  byte[] readFromPort(SerialPort serialPort)  {

        InputStream in = null;
        byte[] bytes = null;

        try {
            in = serialPort.getInputStream();
            int bufflenth = in.available();        //获取buffer里的数据长度

            while (bufflenth != 0) {
                bytes = new byte[bufflenth];    //初始化byte数组为buffer中数据的长度
                in.read(bytes);
                bufflenth = in.available();
            }
        } catch (IOException e) {
            e.printStackTrace();
//            throw new ReadDataFromSerialPortFailure();
        } finally {
            try {
                if (in != null) {
                    in.close();
                    in = null;
                }
            } catch (IOException e) {
                e.printStackTrace();
//                throw new SerialPortInputStreamCloseFailure();
            }
        }

        return bytes;

    }

//    /**
//     * 从串口读取数据
//     *
//     * @param serialPort 当前已建立连接的SerialPort对象
//     * @return 读取到的数据
//     */
//    public static byte[] readFromPort(SerialPort serialPort) {
//        InputStream in = null;
//        byte[] bytes = {};
//        try {
//            in = serialPort.getInputStream();
//            // 缓冲区大小为一个字节
//            byte[] readBuffer = new byte[1];
//            int bytesNum = in.read(readBuffer);
//            while (bytesNum > 0) {
//                bytes = MyUtils.concat(bytes, readBuffer);
//                bytesNum = in.read(readBuffer);
//            }
//        } catch (IOException e) {
//            e.printStackTrace();
//        } finally {
//            try {
//                if (in != null) {
//                    in.close();
//                    in = null;
//                }
//            } catch (IOException e) {
//                e.printStackTrace();
//            }
//        }
//        return bytes;
//    }

    /**
     * 添加监听器
     *
     * @param port     串口对象
     * @param listener 串口监听器
//     * @throws TooManyListeners 监听类对象过多
     */
    public  void addListener(SerialPort port, SerialPortEventListener listener)  {

        try {
            //给串口添加监听器
            port.addEventListener(listener);
            //设置当有数据到达时唤醒监听接收线程
            port.notifyOnDataAvailable(true);
            //设置当通信中断时唤醒中断线程
            port.notifyOnBreakInterrupt(true);
        } catch (TooManyListenersException e) {
//            throw new TooManyListeners();
            logger.error("太多监听器");
            e.printStackTrace();
        }
    }

    /**
     * 删除监听器
     *
     * @param port     串口对象
     * @param listener 串口监听器
//     * @throws TooManyListeners 监听类对象过多
     */
    public  void removeListener(SerialPort port, SerialPortEventListener listener) {
        //删除串口监听器
        port.removeEventListener();
    }

    /**
     * 解析字符串 方法1
     *
     * @param bytes 获取的字节码
     */
    public  void parsingString1(byte[] bytes) {
        StringBuffer sb = new StringBuffer();
        //将ASCII码转成字符串
        for (int i = 0; i < bytes.length; i++) {
            sb.append((char) Integer.parseInt(String.valueOf(bytes[i])));
        }
        System.out.println("方法一,将ASCII码转成字符串："+sb.toString());

        //解析字符串
        String[] strs = sb.toString().trim().split("\\+");
        int weight = 0;
        for (int j = 0; j < strs.length; j++) {
            if (strs[j].trim().length() >= 6) {
                weight = Integer.parseInt(strs[j].trim().substring(0, 6));
                System.out.println("方法一,解析字符串："+weight);
                //发送数据
//                sendMessageToAll(String.valueOf(weight));
                break;
            }
        }
    }

    /**
     * 解析字符串 方法2
     *
     * @param bytes 获取的字节码
     */
    public  void parsingString2(byte[] bytes) {
        StringBuffer sb = new StringBuffer();
        //将ASCII码转成字符串
        for (int i = 0; i < bytes.length; i++) {
            sb.append((char) Integer.parseInt(String.valueOf(bytes[i])));
        }
        System.out.println("方法二,将ASCII码转成字符串："+sb.toString());
        //解析字符串
        String[] strs = sb.toString().trim().split("\\+");
        double weight = 0;
        for (int j = 0; j < strs.length; j++) {
            if (strs[j].trim().length() >= 6) {
                weight = Double.parseDouble(strs[j].trim().substring(0, 6)) / 10;
                System.out.println("方法二,解析字符串："+weight);
                //发送数据
//                sendMessageToAll(String.valueOf(weight));
                break;
            }
        }
    }

    /**
     * 解析字符串 方法3
     *
     * @param bytes 获取的字节码
     */
    public  void parsingString3(byte[] bytes) {
        StringBuffer sb = new StringBuffer();
        //将ASCII码转成字符串
        for (int i = 0; i < bytes.length; i++) {
            sb.append((char) Integer.parseInt(String.valueOf(bytes[i])));
        }
        System.out.println("方法三,将ASCII码转成字符串："+sb.toString());
//        logger.info("sb:" + sb.toString());
        sb.reverse();

        //解析字符串
        String[] strs = sb.toString().trim().split("\\=");
        double weight = 0;
        for (int j = 0; j < strs.length; j++) {
            if (strs[j].trim().length() >= 6) {
                weight = Double.parseDouble(strs[j].trim());
                System.out.println("方法三,解析字符串："+weight);
                //发送数据
//                sendMessageToAll(String.valueOf(weight));
                break;
            }
        }
    }

    /**
     * 解析字符串 方法4
     *
     * @param bytes 获取的字节码
     */
    public  void parsingString4(byte[] bytes) {
        StringBuffer sb = new StringBuffer();
        //将ASCII码转成字符串
        for (int i = 0; i < bytes.length; i++) {
            sb.append((char) Integer.parseInt(String.valueOf(bytes[i])));
        }
        System.out.println("方法四,将ASCII码转成字符串："+sb.toString());
//        logger.info("sb:" + sb.reverse());
        //字符串反转
        sb.reverse();

        //解析字符串
        String[] strs = sb.toString().trim().split("\\=");
        int weight = 0;
        for (int j = 0; j < strs.length; j++) {
            if (strs[j].trim().length() >= 6) {
                weight = Integer.parseInt(strs[j].trim().substring(0, 6));
                System.out.println("方法四,解析字符串："+weight);
                //发送数据
//                sendMessageToAll(String.valueOf(weight));
                break;
            }
        }
    }

    public static void main(String[] args) {
        Pattern p= Pattern.compile("\\\\G\\d+");
        Matcher matches = p.matcher("\\G202012023122845022");
        System.out.println(matches.lookingAt());

    }

}